Cotton gin



J. BEHLE COTTON GIN July 2, 1929.

Filed Sept. 4, 1928 4 Sheets-Sheet l v gwvenkoz 35 Jos :ph Bch/.

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COTTON GIN Filed Septr 4, 1928 4 Sheets-Shea?. 2

l July 2, 1929. J, BEHLE 1.719.285

COTTON GIN Filed sept. 4, 1928 4 sheets-sheet 5 Jose/oh Beh/e (kfw: new

.LBEHLE COTTON GIN July 2, 1929.

4 Sheets-Sheet. 4

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Patented July 2, 1929.

l UNITED STATES 1,719,285 PATENT OFFICE.

JOSEPH BEHLE, 0F DALLAS TEXAS, ASSIGNOR TO THE MURRAY COMPANY, OF DALLAS, TEXAS, A CORPORATION 0F TEXAS.

COTTON GIN.

Application led September 4, 1928. Serial No. 363,910.

This invention involves new and useful improvements in cotton gins.

One object of the invention is to provide a gin of the pneumatic doffer type having certain improved features making for safety, efficiency, convenience and flexibility in operation.

Another object of the invention is to provide an improved form of picker roller which will lend itself to more economical and substantial manufacture; together with means for effecting an easy, positive and safe adjustment with relation to the huller ribs.

A further object of the invention is to provide a safe, simple and effective adjustment for the huller roller.

A still further object of the invention is to provide a chain and sprocket drive with shielded sprockets precluding injury to the fingers of the operator.

An important object of the invention is to provide a belt slack take-up device capable of rapid operation and arranged to e'ect an ample take-up upon a fractional movement.

A particular object of the invention is the provision of a flexible lambrequin which is self-conforming to the huller roller and which reduces the waste of cotton.

A construction designed to carry out the invention will be hereinafter described, together with other features of the invention.

The invention will be more readily understood from a reading of the following specilication and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein:

Fig. 1 is a transverse vertical sectional View of a pneumatic cotton gin constructed in accordance withthe invention,

Fig. 2 is a detail of the picker roller,

Fig. 3 is an end elevation of a portion of the gin,

Fig. 4 is a similar view of the opposite end,

Fig. 5 is a longitudinal sectional View taken on the line 5-5 of Fig. 1,

Fig. 6 is a horizontal cross-sectional vie\ taken on the line 6-6 of Fig. 1,

Fig. 7 is an enlarged detail of the roller adj usting means at one end of the gin,

Fig. 8 is an enlarged view of aportion of the roller driving ineansv at the opposite end of the gin, and

Fig. 9 is an enlarged vertical sectional vie'w taken on the line 9-9 of Fig. 4.

In the drawings the numeral 10 designates the huller breast of the gin stand which is plvoted at 11 (Figs. 3 and 4) to the end members 12 of the roll box. The roll box end members 12 are supported on gin legs 13 which support the saw shaft 14 in suitable bearings. rlhe usual saws 15 are mounted on the shaft 14. rlihe usual gin ribs 16 and huller ribs 17 are mounted inthe gin stand and form no particular part of this invention.

A spiked huller roller 18 has its shaft 19 extending through gaps or openings 20 in the end plates 21 of the huller breast. This shaft is journaled in suitable bearings 22 carried by adjusting arms 23 pivoted at their lower ends on bolts 24 below the gaps 2O at each ,end of the huller breast. At the upper end of each arm a stud bolt 25 engages in a slot 26 concentric to the pivot 24, `whereby the arms are fastened in adjusted positions.

By adjusting the arms 23 the huller roller 18 may be adjusted toward and from the huller ribs 17. One of the features is a lanibrequin 27 which carries a brush 28 along its lower edge so that the spikes of the roller pass lthrough the bristles, whereby hulls and other matter are stripped from said spikes and thus discharged. The lambrequin is adj ustable toward and from the roller by means of screws 29 and nuts 30 rotatably confined in the huller breast, as is best shown in Figs. 1, 3 and 4. The lambrequin and its adjusting means are quite common in this art and the invention resides in the brush 28, which provides a flexible' and effective doliing means as well as a seal between the huller roller and the edge of the lambrequin.

An important feature of the invention is a picker roller made up of a plurality of sections 31. These sections are cylindrical sleeves and are fastened on a shaft 32 end to end. Each section comprises a plurality of teeth or iins 33 preferably arranged in staggered relation. Each fin presents a working edge curved `outwardly and i terminating abruptly in a point 34. The curved edges of j the fins swing toward the huller ribs 17 as the picker roller revolves and owing to their gradual curvature act to shed the cotton centrifugally against the ribs 17 and thus more efectually feed the cotton to the saws 15.

The picker roller construction is advantageous in that the sections are interchangeable and may all be produced from one pattern, thus practicing economy in manufacliv ' turing. The sections are of such length as to extend entirely across the huller breast when assembled on the shaft 32.

Theshaft 32 extends through slots 35 in the end plates 21 and is journaled in bearings 36 carrled byl quadrants 37 pivoted at 38, as is shown in Figs. '3, 4 and 7. Each quadrant has a concentric slot 39 receiving a stud bolt 40 screwed into the end plate 21, whereby the quadrant may be fastened in adjusted positions. By adjusting the quadrants the picker roller is moved toward and from the huller roller.

For driving the rollers a pulley 41 is secured on one end of the shaft 19 and driven by a belt 42. rlhe belt 42 is driven by a pulley 43 which is driven by the feeder or other mechanism. One of the features is a tightener for the belt 42, as is best shown in Figs. 4 and 5. This tightener includes an angular bracket 44 mounted on a bolt 45 vertically adjustable ina slot 46 in the frame of the gin (Figs. 3, 4 and 9). As is bestshown in Fig. 9 the bracket has a lug 47 at its lower end en- I gaging a boss 48- on the gin frame, whereby the bracket is prevented from swinging downward when adjusted.

On the outer end of the bracket a guide 49 is formed for receiving a vertically slidable bar 50. This bar is provided with a slot'51 for receiving a bolt 52 carried by the bracket and whereby the bar may be fastened in position. Flanged pulleys 53 are spitably journaled on the upper and lower ends of the bar and support the belt 42.

The bar is provided with guard lugs 54 adjacent the pulleys which tend to prevent the belt from jumping 0E of said pulleys. A handle 55 (Fig. 4) is provided on the upper end of the bar, which may be grasped by the workman in adjusting said bar, thus making for safety and convenience. It is obvious that a more rapid and quickly operating slack adjuster is provided by the adjustable bracket 44 and the bar 50.

A sprocket wheel 56 is fastened on the shaft 19 adjacent the pulley 41 while a similar sprocket 57 is fastened on the end of the picker roller shaft 32 thereabove. Each of these sprockets is provided with an annular guard flange 58 extending beyond the sprocket teeth,

thereby acting to hold the fingers of the workv man away from the sprocket teeth when he has occasion to adjust the sprocket chain 59 connecting the said sprocket wheels.

lit is important that the huller roller and the picker roller be positively driven and, therefore, it is preferable to provide a slack adjuster for the sprocket chain and as is best --shown in Fig. 7, a bell crank lever 60 is pivoted on the bolt 25 so as to be swung when said bolt is loosened. One end of the lever provides a handle 61 While a flanged idler 62 is journaled on the opposite end of the lever andA engages the chain 59. lt is obvious that the adjustments may be easily, quickly, eiliciently and safely made.

Various changes in the size and shape of the different parts, as well as modifications and alterations, may be made within the scope of the appended claims.

What l claim is:

1. In a cotton in, the combination with the huller ribs, og a picker roller including a shaft and a plurality of imperforate sleeves fastened on the shaft and each provided with integral teeth.

2. ln a cotton gin, the combination with the huller ribs, of a picker roller including a plurality of longitudinally alined sleeves, each having longitudinally spaced integral teeth extending from its outer surface.

3, ln a cotton gin, the combination with the huller ribs, of a pickerroller including a plurality of longitudinally alined sleeves, each having longitudinally spaced integral teeth extending from its outer surface in staggered relation.

4. in a cotton gin, the combination of end frame members having slots, huller ribs mounted between the frame members, a picker roller having trunnions extending through said slots in the frame members and provided with teeth arranged to pass in close proximity to said ribs, adjusting guadrants pivoted at their inner ends to the outer faces of the frame members and each having a projection in which one of the roller trunnions is journaled and also provided with a curved slot concentric to its pivot, and studs on the frame members extending through the quadrant slots and engaging the quadrants for fastening the roller in adjusted positions.

5. In a cotton gin, the combination with the gin frame, of an endless driving belt for driving the huller and picker rollers, an angular bracket adj ustably mounted on the gin frame, an upright bar vertically adjustable on the bracket, and a pair of spaced rollers mounted on the bar and supporting the belt.

6. In a Icotton gin, end frame members having openings therein, picker and huller rollers having their trunnions extending through the openings in the end frame members, and sprocket wheels mounted on the trunnions at one side of the gin frame on the outside of the end frame members and each Wheel beingprovided with a circumferential guard rigid therewith and extending beyond the teeth of said sprocket on its side remote from the frame member.

7. ln a cotton gin, the combination with the gin frame, of an endless driving belt for driving the huller and picker rollers, and a slack adjuster including an adjustable support carrying a pair of spaced pulleys each engaging one of the flights of the belt, whereby the iiights are supported in spaced relation, and a single adjustment of the adjuster moves both pulleys and tightens both belt iiights.

8. In a cotton gin, a gin frame having openings at its ends, a huller roller in the gin frame having its trunnions extending through said openings, arms pivoted on the frame and sup- 5 porting the trunnions of the rollers, bolts holding said larms in the position to which they are swung, a sprocket Wheel fastened on one of said trunnions, a slack adjuster mounted on one of said arm bolts, a drive belt engaging said sprocket, anda pulley mounted l0 on said adjuster and engaging said belt.

In testimony whereof I aix my signature.

JOSEPH BEHLE. 

